3944370 has 16 divisors (see below), whose sum is σ = 9466560. Its totient is φ = 1051824.

The previous prime is 3944359. The next prime is 3944371. The reversal of 3944370 is 734493.

3944370 = T₄₅₀ + T₄₅₁ + ... + T₄₈₅.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 131479 = 3944370 / (3 + 9 + 4 + 4 + 3 + 7 + 0).

It is not an unprimeable number, because it can be changed into a prime (3944371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65710 + ... + 65769.

It is an arithmetic number, because the mean of its divisors is an integer number (591660).

Almost surely, 2^3944370 is an apocalyptic number.

3944370 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3944370 is an abundant number, since it is smaller than the sum of its proper divisors (5522190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3944370 is a wasteful number, since it uses less digits than its factorization.

3944370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131489.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 3944370 is about 1986.0438061634. The cubic root of 3944370 is about 158.0007744447. Note that the first 3 decimals are identical.

The spelling of 3944370 in words is "three million, nine hundred forty-four thousand, three hundred seventy".